A cable molding primarily intended to be installed on a wall structure of a common hallway of a multiple dwelling unit below pre-existing molding, and an overlay molding attachable to the cable molding to conceal both the cable molding and the pre-existing molding. In certain embodiments, the present invention relates to compounds, compositions thereof, and methods that enhance the ability of mammalian red blood cells to deliver oxygen, by delivering a ligand for the allosteric site of hemoglobin to the cytoplasm of the red blood cells. A member is selectably moved into an intense evanescent wave region at the hemi-beads’ inward side to selectably frustrate substantial total internal reflection of light rays. The audio-apparatus main body that has acquired the signal indicating volume down to a mute level lowers the volume to the mute level, while ignoring an output signal from the audio operating unit.